void CopyBufferToImage(Queue queue, CommandPool cmdPool, ImageData imageData, Buffer imageBuffer)
{
var cmdBuffers = AllocateCommandBuffers(cmdPool, 1);
var cmdBuffer = cmdBuffers[0];
var beginInfo = new CommandBufferBeginInfo();
cmdBuffer.Begin(beginInfo);
PipelineBarrierSetLayout(cmdBuffer, imageData.Image, ImageLayout.Preinitialized, ImageLayout.TransferDstOptimal, AccessFlags.HostWrite, AccessFlags.TransferWrite);
var subresource = new ImageSubresourceLayers(ImageAspectFlags.Color, 0, 0, 1);
var imageCopy = new BufferImageCopy(0, 0, 0, subresource, new Offset3D(0, 0, 0), new Extent3D(imageData.Width, imageData.Height, 1));
cmdBuffer.CopyBufferToImage(imageBuffer, imageData.Image, ImageLayout.TransferDstOptimal, new BufferImageCopy[] { imageCopy });
PipelineBarrierSetLayout(cmdBuffer, imageData.Image, ImageLayout.TransferDstOptimal, ImageLayout.ColorAttachmentOptimal, AccessFlags.TransferWrite, AccessFlags.ColorAttachmentWrite);
cmdBuffer.End();
var submitInfo = new SubmitInfo(null, null, new[] { cmdBuffer }, null);
queue.Submit(new[] { submitInfo });
submitInfo.Dispose();
queue.WaitIdle();
device.FreeCommandBuffers(cmdPool, new[] { cmdBuffer });
}
protected void SubmitForExecution(Queue queue, Semaphore presentSemaphore, CommandBuffer cmdBuffer)
{
var submitInfo = new SubmitInfo(new[] { presentSemaphore }, null, new[] { cmdBuffer }, null);
queue.Submit(new[] { submitInfo });
submitInfo.Dispose();
}
void SubmitForExecution(Queue queue, CommandBuffer cmdBuffer)
{
var submitInfo = new SubmitInfo(null, null, new[] { cmdBuffer }, null);
queue.Submit(new[] { submitInfo });
submitInfo.Dispose();
}
ImageData LoadTexture(string filename, Queue queue, CommandPool cmdPool)
{
//
var bmp = new Bitmap(filename);
var bitmapFormat = System.Drawing.Imaging.PixelFormat.Format32bppArgb;
var rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
var bitmapData = bmp.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadOnly, bitmapFormat);
//
uint imageWidth = (uint)bmp.Width;
uint imageHeight = (uint)bmp.Height;
var imageData = new ImageData();
imageData.Width = imageWidth;
imageData.Height = imageHeight;
imageData.Image = CreateTextureImage(Format.B8g8r8a8Unorm, imageWidth, imageHeight);
imageData.Memory = BindImage(imageData.Image);
imageData.View = CreateImageView(imageData.Image, Format.B8g8r8a8Unorm);
imageData.Sampler = CreateSampler();
var memRequirements = device.GetImageMemoryRequirements(imageData.Image);
var imageBuffer = CreateBuffer(memRequirements.Size, BufferUsageFlags.TransferSrc | BufferUsageFlags.TransferDst);
var memoryIndex = FindMemoryIndex(MemoryPropertyFlags.HostVisible);
var memAlloc = new MemoryAllocateInfo(memRequirements.Size, memoryIndex);
var bufferMemory = BindBuffer(imageBuffer, memAlloc);
CopyBitmapToBuffer(bitmapData.Scan0, (int)(imageWidth * imageHeight * 4), bufferMemory, memRequirements);
//
var cmdBuffers = AllocateCommandBuffers(cmdPool, 1);
var cmdBuffer = cmdBuffers[0];
var beginInfo = new CommandBufferBeginInfo();
cmdBuffer.Begin(beginInfo);
PipelineBarrierSetLayout(cmdBuffer, imageData.Image, ImageLayout.Preinitialized, ImageLayout.TransferDstOptimal, AccessFlags.HostWrite, AccessFlags.TransferWrite);
CopyBufferToImage(cmdBuffer, imageData, imageBuffer);
PipelineBarrierSetLayout(cmdBuffer, imageData.Image, ImageLayout.TransferDstOptimal, ImageLayout.ShaderReadOnlyOptimal, AccessFlags.TransferWrite, AccessFlags.ShaderRead);
// wait... why does this work?
device.DestroyBuffer(imageBuffer);
device.FreeMemory(bufferMemory);
cmdBuffer.End();
var submitInfo = new SubmitInfo(null, null, new[] { cmdBuffer }, null);
queue.Submit(new[] { submitInfo });
submitInfo.Dispose();
queue.WaitIdle();
device.FreeCommandBuffers(cmdPool, new[] { cmdBuffer });
//
//CopyBufferToImage(queue, cmdPool, imageData, imageBuffer);
//
bmp.UnlockBits(bitmapData);
bmp.Dispose();
//
return(imageData);
}
